Latch and release perforating gun connector
CA 2212604 C · Owner: Henke, Joseph A. · Inventors: Henke, Joseph A.; Burleson, John D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A perforating gun connector is provided for downhole use in oil and gas fields. The perforating gun connector includes a stinger and a stinger receptacle. The stinger is adapted to be stabbed into the stinger receptacle. A loaded engaging member movable between a running position before the stinger is stabbed into the stinger receptacle and a latched position when the stinger is stabbed into the stinger receptacle to latch the stinger and the stinger receptacle together. A release member retains the loaded engaging member in the running position. When the stinger is stabbed into the stinger receptacle and a set force is applied to the stinger and stinger receptacle, the release member …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed August 8, 1997 and granted October 15, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 8, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 8, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.